Potassium dihydrogen phosphate, as a common phosphorus and potassium efficient compound fertilizer, can promote plant photosynthesis, quickly supplement effective nutrients, 

enhance the ability of cold resistance, drought resistance, disease resistance and pest resistance of crops, improve crop quality and other functions. It has the characteristics of small 

dosage, high fertilizer effect, easy absorption, quick effect, convenient use and remarkable yield increase. Potassium dihydrogen phosphate is a non-toxic, harmless and non-residual 

green fertilizer, which has been widely used in fruit production in recent years.

High purity potassium dihydrogen phosphate nutrient composition of 52% phosphorus and 34% potassium. Phosphorus has a significant effect on the growth of roots, stems and skins 

of crops, and also has an obvious effect on enhancing disease resistance, cold resistance and waterlogging resistance of crops. Potassium has significant effects on improving crop yield, 

increasing fruit quality and increasing sugar content.

In agricultural production, the use of potassium dihydrogen phosphate has been concerned, is a high-quality phosphate potassium fertilizer, because of its absorption and utilization, 

utilization rate of more than 90%, the effect is good, and then become the fertilizer industry "universal fertilizer". Understanding and mastering its functional characteristics and clever 

and correct use can achieve twice the result with half the effort.

Potassium dihydrogen phosphate use period

Potassium dihydrogen phosphate is better used in the flowering stage, fruit expansion stage, color transformation stage, flower bud differentiation stage, spray concentration 500-800 

times is appropriate, generally not recommended to use at noon and high temperature.

1. Before and after flowering:

In this period, the demand for phosphorus is relatively large, and phosphorus has a very good effect on improving the flowering and fruit setting rate of crops and reducing the fall of 

flowers and fruits. Spraying 500-800 times potassium dihydrogen methylphosphate on the leaf surface can thicken the leaves of crops, improve photosynthetic efficiency and flowering 

and fruit setting rate.

2. Fruit growth period:

The demand for potassium is high at the fruit expansion stage. Potassium is indispensable for the formation of seeds and the expansion of fruits, and crops are more sensitive to potassium 

at this time. In this period, the effect of root or leaf spraying is very obvious.

The leaf surface spraying 500-800 times potassium dihydrogen methylphosphate 1-2 times can promote the growth of young fruit and increase the growth rate of young fruit.

3. Color transfer period:

Fruit coloring is the process of anthocyanin formation, and the formation of anthocyanin is directly related to the sugar content and sunlight, and the formation of sugars is affected by 

potassium. Therefore, the action process of potassium element plays a key role in fruit coloring. The leaf surface is sprayed with potassium dihydrogen methylate, and the leaf surface is 

sprayed 500-800 times to promote the sweetness and color of the fruit.

4. After picking:

Spraying potassium dihydrogen phosphate can protect the leaves, store energy for next year's flowering and fruit, and promote flower bud differentiation.

Proper use of potassium dihydrogen phosphate

1. spraying method: Focus on spraying the back of the leaf, and strive to better absorption effect. Generally, foliar spraying is the main method. Spray once every 7 to 10 days, 2 to 3 times 

in a row.

2. spraying time and concentration: Choose to spray in the critical period or peak period of phosphorus and potassium absorption of crops, the effect is very good.

3. mixing situation: potassium dihydrogen phosphate can be mixed with most acidic pesticide fertilizers, 0.5%~1% of potassium dihydrogen phosphate solution pH between 4.6~6, 

generally will not cause precipitation with other substances.